13664432203 has 2 divisors, whose sum is σ = 13664432204. Its totient is φ = 13664432202.

The previous prime is 13664432143. The next prime is 13664432213. The reversal of 13664432203 is 30223446631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13664432203 - 2²¹ = 13662335051 is a prime.

It is a super-3 number, since 3×13664432203³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (13664432213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6832216101 + 6832216102.

It is an arithmetic number, because the mean of its divisors is an integer number (6832216102).

Almost surely, 2^13664432203 is an apocalyptic number.

13664432203 is a deficient number, since it is larger than the sum of its proper divisors (1).

13664432203 is an equidigital number, since it uses as much as digits as its factorization.

13664432203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 34.

Adding to 13664432203 its reverse (30223446631), we get a palindrome (43887878834).

The spelling of 13664432203 in words is "thirteen billion, six hundred sixty-four million, four hundred thirty-two thousand, two hundred three".